HYS64V4120GU Datasheet, PDF (2/11 Pages) Siemens Semiconductor Group – 3.3V 4M x 64-Bit 2 BANK SDRAM Module 3.3V 4M x 72-Bit 2 BANK SDRAM Module

HYS64(72)V4120GU-10
4M x 64/72 SDRAM-Module
The HYS64(72)V4120GU-10 are industry standard 168-pin 8-byte Dual in-line Memory Modules
(DIMMs) which are organised as 4M x 64 and 4M x 72 in two banks high speed memory arrays
designed with Synchronous DRAMs (SDRAMs) for non-parity and ECC applications. The DIMMs
use 16 2M x 8 SDRAMs for the 4M x 64 organisation and additional two SDRAMs for the 4M x 72
organisation. Decoupling capacitors are mounted on the PC board.
The DIMMs have a serial presence detect, implemented with a serial E ²PROM using the two pin I²C
protocol. The first 128 bytes are utilized by the DIMM manufacturer and the second 128 bytes are
available to the end user.
All SIEMENS 168-pin DIMMs provide a high performance, flexible 8-byte interface in a 133,35 mm
long footprint. This SDRAM module is available with a board-height of 1,15“.
Ordering Information
Type
Package
HYS 64V4120GU-10 L-DIM-168-25
HYS 72V4120GU-10 L-DIM-168-25
Descriptions
PC66 4M x 64 2 bank SDRAM module
PC66 4M x 72 2 bank SDRAM module
Module
Height
1,15“
1,15“
Pin Names
A0-A10
BS (A11)
DQ0 - DQ63
CB0-CB7
RAS
CAS
WE
CKE0, CKE1
CLK0 - CLK3
DQMB0 - DQMB7
CS0 - CS3
Vcc
Vss
SCL
SDA
N.C.
Address Format:
4M x 64
4M x 72
Part Number
HYS 64V4120GU
HYS 72V4120GU
Rows
11
11
Address Inputs( RA0 ~ RA10 / CA0 ~ CA8)
Bank Select
Data Input/Output
Check Bits (x72 organisation only)
Row Address Strobe
Column Address Strobe
Read / Write Input
Clock Enable
Clock Input
Data Mask
Chip Select
Power (+3.3 Volt)
Ground
Clock for Presence Detect
Serial Data Out for Presence Detect
No Connection
Columns
9
9
Bank Select
1
1
Refresh
4k
4k
Period
64 ms
64 ms
Interval
15,6 µs
15,6 µs
Semiconductor Group
2